Fixed some warnings

Luna.Channels.Tests/ChannelManagerInterfaceTests.cs

@@ -1,5 +1,4 @@
 using Luna.Channels.Abstractions;
-using Luna.Channels.Tests.Stubs;
 using Luna.Core.Abstractions;
 using Luna.Shared;
 using Microsoft.Extensions.Logging;
@@ -95,7 +94,7 @@ public class ChannelManagerInterfaceTests
 
         stub.RegisterChannel(mockChannel.Object);
 
-        var message = new ChannelMessage(
+        var _ = new ChannelMessage(
             Guid.NewGuid().ToString(),
             Guid.NewGuid().ToString(),
             "sender-1",
@@ -103,11 +102,11 @@ public class ChannelManagerInterfaceTests
             "Hello",
             DateTimeOffset.UtcNow);
 
-        var eventArgs = new ChannelMessageReceivedEventArgs
-        {
-            Message = message,
-            Channel = mockChannel.Object
-        };
+        // var eventArgs = new ChannelMessageReceivedEventArgs
+        // {
+        //     Message = message,
+        //     Channel = mockChannel.Object
+        // };
 
         Assert.That(capturedArgs, Is.Not.Null);
     }